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词汇 pre-ignition
释义 pre-ignition
noun[ U ]
mainly UK(also mainly USpreignition)uk /ˌpriː.ɪɡˈnɪʃ.ən/ us /ˌpriː.ɪɡˈnɪʃ.ən/
ignition(= the process of starting to burn fuel) that happens in an engine before the correct time:
Pre-ignition is the worst possible malfunction in the combustion chamber.
Because of the abnormal stresses involved, preignition can be extremely damaging to an engine.
Once pre-ignition began on the plane's engine, it was catastrophic within a few seconds.
Anything that causes combustion to occur before the specified ignition time could be said to be causing pre-ignition.
SMART Vocabulary: related words and phrases

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